1 ; RUN: opt -mtriple=x86_64-- %s -S --instcombine -o - | FileCheck %s
2 ; Verify that demanded bits optimisations don't affect debuginfo
6 @a = common dso_local local_unnamed_addr global i32 0, align 4
8 define dso_local i32 @p() local_unnamed_addr !dbg !11 {
10 %conv = load i32, i32* @a, align 4, !dbg !14
11 %0 = and i32 %conv, 65535, !dbg !14
12 ; CHECK: metadata !DIExpression(DW_OP_constu, 65535, DW_OP_and, DW_OP_stack_value))
13 call void @llvm.dbg.value(metadata i32 %0, metadata !15, metadata !DIExpression()), !dbg !14
14 %1 = lshr i32 %0, 12, !dbg !14
15 %2 = and i32 %1, 8, !dbg !14
16 %3 = xor i32 %2, 8, !dbg !14
20 declare void @llvm.dbg.value(metadata, metadata, metadata)
23 !llvm.module.flags = !{!8, !9}
26 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, globals: !2, splitDebugInlining: false, nameTableKind: None)
27 !1 = !DIFile(filename: "instcomnine.ll", directory: "/temp/bz44371")
30 !7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
31 !8 = !{i32 7, !"Dwarf Version", i32 4}
32 !9 = !{i32 2, !"Debug Info Version", i32 3}
34 !11 = distinct !DISubprogram(name: "p", scope: !1, file: !1, line: 6, type: !12, scopeLine: 6, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0)
35 !12 = !DISubroutineType(types: !13)
37 !14 = !DILocation(line: 4, column: 35, scope: !11)
38 !15 = !DILocalVariable(name: "p_28", arg: 1, scope: !11, file: !1, line: 16, type: !7)